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a question for those with dual screens

by deepscratch · in Torque 3D Professional · 07/27/2009 (12:45 am) · 8 replies

has anyone noticed a difference in frame rate when running T3D on the different screens?
if I run T3D on screen 1, I get around 30 FPS, if I run on screen 2, I get a frame rate of around 60 FPS.
its always like this for me.
just wondering if anyone else has noticed this happening.
so if you got dual screens, check this out and post your findings here, please.
thanks
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Torque 3D Owner Jason Parker
#1
07/27/2009 (1:28 am)
Fullscreen? Windowed? Single video card, two video cards?

I have a single 9800GT connected to a 32" 1080p TV (primary) and 22" 1680x1050 monitor (secondary).

Windowed mode 1280x720 on Primary: ~90fps
Windowed mode 1280x720 on Secondary: ~40fps
Windowed mode 1280x720 spanned across the two: ~40fps

Torque Owner deepscratch
DeepScratchStudios
#2
07/27/2009 (2:59 am)
great, similar results.
anyone else?

and if anybody has an idea as to why one screen gives so much more than the other, pray tell.

btw: I'm running dual 22" on a single card (gtx295), different makes of screen, but identical ratings

Torque 3D Owner Steve
YP productions
#3
07/27/2009 (6:06 am)
One video card, dual 24" monitors of the same make. I get similar results, about half the fps on the secondary monitor regardless of windowed or full screen.

Torque Owner Ryan Mounts
CornerstoneViz
#4
07/27/2009 (6:47 am)
I get about 31 fps on my primary and 22 on my secondary.

Associate Manoel Neto
Default Studio Name
#5
07/27/2009 (7:38 am)
It's a general NVidia problem, not limited to T3D. The same thing happens if you rotate your monitor, which pisses me to no end.

I believe the only way to get dual screens without losing performance is using the horizontal or vertical span modes, which treat both screens as a single wide/tall one.

Torque Owner TheGasMan
G.A.S. [+others]
#6
07/27/2009 (10:05 am)
This is with the 'Multi-display/mixed GPU acceleration' set as "multiple display performance mode" ?

I remember having issues like this last year, yet I can't remember how I fixed it. :X

Associate Manoel Neto
Default Studio Name
#7
07/27/2009 (11:19 am)
I tried all I could to fix this. On an old Quadro, no less. Searched google up and down, found out it was still going on the GF8 and GF9 series. My monitor base can be rotated, but I cannot use it like that (which I prefer for coding) because the performance hit in 3D games is unacceptable. Even the XP UI seems slower.

However, if you use a spanned mode I *think* there's no performance hit, because by all intents there's only one screen and they can share a continuous framebuffer.


Torque 3D Owner Scott Peal
#8
07/28/2009 (2:54 pm)
21" Windowed mode 1280x720 on Primary: ~95fps
65" Windowed mode 1280x720 on Secondary: ~35fps